1. Database Reference
  2. Dynamic Performance Views
  3. Dynamic Performance (V$) Views: V$ACCESS to V$HVMASTER_INFO
  4. V$FILEMETRIC_HISTORY

7.211 V$FILEMETRIC_HISTORY

V$FILEMETRIC_HISTORY displays values of file metrics for all intervals in the last one hour.

Column Datatype Description

BEGIN_TIME

DATE

Begin time of the interval

END_TIME

DATE

End time of the interval

INTSIZE_CSEC

NUMBER

Interval size (in hundredths of a second)

FILE_ID

NUMBER

File number

CREATION_TIME

NUMBER

Timestamp of the file creation

AVERAGE_READ_TIME

NUMBER

Average file read time (in hundredths of a second)

AVERAGE_WRITE_TIME

NUMBER

Average file write time (in hundredths of a second)

PHYSICAL_READS

NUMBER

Number of physical reads

PHYSICAL_WRITES

NUMBER

Number of physical writes

PHYSICAL_BLOCK_READS

NUMBER

Number of physical block reads

PHYSICAL_BLOCK_WRITES

NUMBER

Number of physical block writes

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data